/**
 * ***************************************************************************** Copyright (c) 2000,
 * 2012 IBM Corporation and others. All rights reserved. This program and the accompanying materials
 * are made available under the terms of the Eclipse Public License v1.0 which accompanies this
 * distribution, and is available at http://www.eclipse.org/legal/epl-v10.html
 *
 * <p>Contributors: IBM Corporation - initial API and implementation
 * *****************************************************************************
 */
package org.eclipse.che.plugin.java.server.jdt.quickfix;

import java.util.ArrayList;
import java.util.Hashtable;
import org.eclipse.che.plugin.java.server.jdt.testplugin.Java17ProjectTestSetup;
import org.eclipse.che.plugin.java.server.jdt.testplugin.JavaProjectHelper;
import org.eclipse.che.plugin.java.server.jdt.testplugin.TestOptions;
import org.eclipse.jdt.core.ICompilationUnit;
import org.eclipse.jdt.core.IJavaProject;
import org.eclipse.jdt.core.IPackageFragment;
import org.eclipse.jdt.core.IPackageFragmentRoot;
import org.eclipse.jdt.core.JavaCore;
import org.eclipse.jdt.core.dom.CompilationUnit;
import org.eclipse.jdt.core.formatter.DefaultCodeFormatterConstants;
import org.eclipse.jdt.internal.corext.codemanipulation.StubUtility;
import org.eclipse.jdt.internal.corext.template.java.CodeTemplateContextType;
import org.eclipse.jdt.internal.ui.JavaPlugin;
import org.eclipse.jdt.ui.PreferenceConstants;
import org.eclipse.jdt.ui.text.java.correction.CUCorrectionProposal;
import org.eclipse.jface.preference.IPreferenceStore;
import org.junit.After;
import org.junit.Before;
import org.junit.Test;

public class LocalCorrectionsQuickFixTest17 extends QuickFixTest {

  private static final Class THIS = LocalCorrectionsQuickFixTest17.class;

  private IJavaProject fJProject1;

  private IPackageFragmentRoot fSourceFolder;

  public LocalCorrectionsQuickFixTest17() {
    super(new Java17ProjectTestSetup());
  }
  //
  //	public static Test suite() {
  //		return setUpTest(new TestSuite(THIS));
  //	}
  //
  //	public static Test setUpTest(Test test) {
  //		return new Java17ProjectTestSetup(test);
  //	}

  @Before
  @Override
  public void setUp() throws Exception {
    super.setUp();
    Hashtable options = TestOptions.getDefaultOptions();
    options.put(DefaultCodeFormatterConstants.FORMATTER_TAB_CHAR, JavaCore.SPACE);
    options.put(DefaultCodeFormatterConstants.FORMATTER_TAB_SIZE, "4");
    options.put(
        DefaultCodeFormatterConstants.FORMATTER_NUMBER_OF_EMPTY_LINES_TO_PRESERVE,
        String.valueOf(99));
    options.put(JavaCore.COMPILER_PB_STATIC_ACCESS_RECEIVER, JavaCore.ERROR);
    options.put(JavaCore.COMPILER_PB_UNCHECKED_TYPE_OPERATION, JavaCore.IGNORE);
    options.put(JavaCore.COMPILER_PB_MISSING_HASHCODE_METHOD, JavaCore.WARNING);
    options.put(JavaCore.COMPILER_PB_REDUNDANT_TYPE_ARGUMENTS, JavaCore.WARNING);

    JavaCore.setOptions(options);

    IPreferenceStore store = JavaPlugin.getDefault().getPreferenceStore();
    store.setValue(PreferenceConstants.CODEGEN_ADD_COMMENTS, false);

    StubUtility.setCodeTemplate(CodeTemplateContextType.CATCHBLOCK_ID, "", null);
    StubUtility.setCodeTemplate(CodeTemplateContextType.CONSTRUCTORSTUB_ID, "", null);
    StubUtility.setCodeTemplate(CodeTemplateContextType.METHODSTUB_ID, "", null);

    fJProject1 = Java17ProjectTestSetup.getProject();

    fSourceFolder = JavaProjectHelper.addSourceContainer(fJProject1, "src");
  }

  @Override
  @After
  public void tearDown() throws Exception {
    super.tearDown();
    JavaProjectHelper.clear(fJProject1, Java17ProjectTestSetup.getDefaultClasspath());
  }

  @Test
  public void testUncaughtExceptionUnionType() throws Exception {
    IPackageFragment pack1 = fSourceFolder.createPackageFragment("test1", false, null);
    StringBuffer buf = new StringBuffer();
    buf.append("package test1;\n");
    buf.append("import java.io.FileNotFoundException;\n");
    buf.append("import java.io.IOException;\n");
    buf.append("import java.io.InterruptedIOException;\n");
    buf.append("public class E {\n");
    buf.append("    void foo(int a) {\n");
    buf.append("        try {\n");
    buf.append("            if (a < 10)\n");
    buf.append("                throw new FileNotFoundException();\n");
    buf.append("            else if (a < 20)\n");
    buf.append("                throw new InterruptedIOException();\n");
    buf.append("            else\n");
    buf.append("                throw new IOException();\n");
    buf.append("        } catch (FileNotFoundException | InterruptedIOException ex) {\n");
    buf.append("            ex.printStackTrace();\n");
    buf.append("        } \n");
    buf.append("    }\n");
    buf.append("}\n");
    ICompilationUnit cu = pack1.createCompilationUnit("E.java", buf.toString(), false, null);

    CompilationUnit astRoot = getASTRoot(cu);
    ArrayList proposals = collectCorrections(cu, astRoot);
    assertNumberOfProposals(proposals, 4);
    assertCorrectLabels(proposals);

    buf = new StringBuffer();
    buf.append("package test1;\n");
    buf.append("import java.io.FileNotFoundException;\n");
    buf.append("import java.io.IOException;\n");
    buf.append("import java.io.InterruptedIOException;\n");
    buf.append("public class E {\n");
    buf.append("    void foo(int a) throws IOException {\n");
    buf.append("        try {\n");
    buf.append("            if (a < 10)\n");
    buf.append("                throw new FileNotFoundException();\n");
    buf.append("            else if (a < 20)\n");
    buf.append("                throw new InterruptedIOException();\n");
    buf.append("            else\n");
    buf.append("                throw new IOException();\n");
    buf.append("        } catch (FileNotFoundException | InterruptedIOException ex) {\n");
    buf.append("            ex.printStackTrace();\n");
    buf.append("        } \n");
    buf.append("    }\n");
    buf.append("}\n");
    String expected1 = buf.toString();

    buf = new StringBuffer();
    buf.append("package test1;\n");
    buf.append("import java.io.FileNotFoundException;\n");
    buf.append("import java.io.IOException;\n");
    buf.append("import java.io.InterruptedIOException;\n");
    buf.append("public class E {\n");
    buf.append("    void foo(int a) {\n");
    buf.append("        try {\n");
    buf.append("            if (a < 10)\n");
    buf.append("                throw new FileNotFoundException();\n");
    buf.append("            else if (a < 20)\n");
    buf.append("                throw new InterruptedIOException();\n");
    buf.append("            else\n");
    buf.append("                throw new IOException();\n");
    buf.append("        } catch (FileNotFoundException | InterruptedIOException ex) {\n");
    buf.append("            ex.printStackTrace();\n");
    buf.append("        } catch (IOException e) {\n");
    buf.append("        } \n");
    buf.append("    }\n");
    buf.append("}\n");
    String expected2 = buf.toString();

    buf = new StringBuffer();
    buf.append("package test1;\n");
    buf.append("import java.io.FileNotFoundException;\n");
    buf.append("import java.io.IOException;\n");
    buf.append("import java.io.InterruptedIOException;\n");
    buf.append("public class E {\n");
    buf.append("    void foo(int a) {\n");
    buf.append("        try {\n");
    buf.append("            if (a < 10)\n");
    buf.append("                throw new FileNotFoundException();\n");
    buf.append("            else if (a < 20)\n");
    buf.append("                throw new InterruptedIOException();\n");
    buf.append("            else\n");
    buf.append("                throw new IOException();\n");
    buf.append(
        "        } catch (FileNotFoundException | InterruptedIOException | IOException ex) {\n");
    buf.append("            ex.printStackTrace();\n");
    buf.append("        } \n");
    buf.append("    }\n");
    buf.append("}\n");
    String expected3 = buf.toString();

    assertExpectedExistInProposals(proposals, new String[] {expected1, expected2, expected3});
  }

  @Test
  public void testUncaughtExceptionTryWithResources1() throws Exception {

    IPackageFragment pack1 = fSourceFolder.createPackageFragment("test1", false, null);
    StringBuffer buf = new StringBuffer();
    buf.append("package test1;\n");
    buf.append("import java.io.FileInputStream;\n");
    buf.append("class MyException extends Exception {\n");
    buf.append("    static final long serialVersionUID = 1L;\n");
    buf.append("}\n");
    buf.append("public class E {\n");
    buf.append("    void bar(int n) throws IllegalArgumentException, MyException {\n");
    buf.append("        if (n == 1)\n");
    buf.append("            throw new IllegalArgumentException();\n");
    buf.append("        else\n");
    buf.append("            throw new MyException();\n");
    buf.append("    }\n");
    buf.append("    void foo(String name, boolean b) {\n");
    buf.append("        try (FileInputStream fis = new FileInputStream(name)) {\n");
    buf.append("            bar(1);\n");
    buf.append("        }\n");
    buf.append("    }\n");
    buf.append("}\n");

    ICompilationUnit cu = pack1.createCompilationUnit("E.java", buf.toString(), false, null);

    CompilationUnit astRoot = getASTRoot(cu);
    ArrayList proposals = collectCorrections(cu, astRoot, 3, 0); // quick fix on 1st problem
    assertNumberOfProposals(proposals, 3);
    assertCorrectLabels(proposals);

    CUCorrectionProposal proposal = (CUCorrectionProposal) proposals.get(0);
    String preview1 = getPreviewContent(proposal);

    buf = new StringBuffer();
    buf.append("package test1;\n");
    buf.append("import java.io.FileInputStream;\n");
    buf.append("import java.io.FileNotFoundException;\n");
    buf.append("import java.io.IOException;\n");
    buf.append("class MyException extends Exception {\n");
    buf.append("    static final long serialVersionUID = 1L;\n");
    buf.append("}\n");
    buf.append("public class E {\n");
    buf.append("    void bar(int n) throws IllegalArgumentException, MyException {\n");
    buf.append("        if (n == 1)\n");
    buf.append("            throw new IllegalArgumentException();\n");
    buf.append("        else\n");
    buf.append("            throw new MyException();\n");
    buf.append("    }\n");
    buf.append(
        "    void foo(String name, boolean b) throws FileNotFoundException, IOException {\n");
    buf.append("        try (FileInputStream fis = new FileInputStream(name)) {\n");
    buf.append("            bar(1);\n");
    buf.append("        }\n");
    buf.append("    }\n");
    buf.append("}\n");
    String expected1 = buf.toString();

    proposal = (CUCorrectionProposal) proposals.get(1);
    String preview2 = getPreviewContent(proposal);

    buf = new StringBuffer();
    buf.append("package test1;\n");
    buf.append("import java.io.FileInputStream;\n");
    buf.append("import java.io.FileNotFoundException;\n");
    buf.append("import java.io.IOException;\n");
    buf.append("class MyException extends Exception {\n");
    buf.append("    static final long serialVersionUID = 1L;\n");
    buf.append("}\n");
    buf.append("public class E {\n");
    buf.append("    void bar(int n) throws IllegalArgumentException, MyException {\n");
    buf.append("        if (n == 1)\n");
    buf.append("            throw new IllegalArgumentException();\n");
    buf.append("        else\n");
    buf.append("            throw new MyException();\n");
    buf.append("    }\n");
    buf.append("    void foo(String name, boolean b) {\n");
    buf.append("        try (FileInputStream fis = new FileInputStream(name)) {\n");
    buf.append("            bar(1);\n");
    buf.append("        } catch (FileNotFoundException e) {\n");
    buf.append("        } catch (IOException e) {\n");
    buf.append("        }\n");
    buf.append("    }\n");
    buf.append("}\n");
    String expected2 = buf.toString();

    proposal = (CUCorrectionProposal) proposals.get(2);
    String preview3 = getPreviewContent(proposal);

    buf = new StringBuffer();
    buf.append("package test1;\n");
    buf.append("import java.io.FileInputStream;\n");
    buf.append("import java.io.FileNotFoundException;\n");
    buf.append("import java.io.IOException;\n");
    buf.append("class MyException extends Exception {\n");
    buf.append("    static final long serialVersionUID = 1L;\n");
    buf.append("}\n");
    buf.append("public class E {\n");
    buf.append("    void bar(int n) throws IllegalArgumentException, MyException {\n");
    buf.append("        if (n == 1)\n");
    buf.append("            throw new IllegalArgumentException();\n");
    buf.append("        else\n");
    buf.append("            throw new MyException();\n");
    buf.append("    }\n");
    buf.append("    void foo(String name, boolean b) {\n");
    buf.append("        try (FileInputStream fis = new FileInputStream(name)) {\n");
    buf.append("            bar(1);\n");
    buf.append("        } catch (FileNotFoundException | IOException e) {\n");
    buf.append("        }\n");
    buf.append("    }\n");
    buf.append("}\n");
    String expected3 = buf.toString();

    assertEqualStringsIgnoreOrder(
        new String[] {preview1, preview2, preview3},
        new String[] {expected1, expected2, expected3});
  }

  @Test
  public void testUncaughtExceptionTryWithResources2() throws Exception {

    IPackageFragment pack1 = fSourceFolder.createPackageFragment("test1", false, null);
    StringBuffer buf = new StringBuffer();
    buf.append("package test1;\n");
    buf.append("import java.io.FileInputStream;\n");
    buf.append("class MyException extends Exception {\n");
    buf.append("    static final long serialVersionUID = 1L;\n");
    buf.append("}\n");
    buf.append("public class E {\n");
    buf.append("    void bar(int n) throws IllegalArgumentException, MyException {\n");
    buf.append("        if (n == 1)\n");
    buf.append("            throw new IllegalArgumentException();\n");
    buf.append("        else\n");
    buf.append("            throw new MyException();\n");
    buf.append("    }\n");
    buf.append("    void foo(String name, boolean b) {\n");
    buf.append("        try (FileInputStream fis = new FileInputStream(name)) {\n");
    buf.append("            bar(1);\n");
    buf.append("        }\n");
    buf.append("    }\n");
    buf.append("}\n");

    ICompilationUnit cu = pack1.createCompilationUnit("E.java", buf.toString(), false, null);

    CompilationUnit astRoot = getASTRoot(cu);
    ArrayList proposals = collectCorrections(cu, astRoot, 3, 1); // quick fix on 2nd problem
    assertNumberOfProposals(proposals, 3);
    assertCorrectLabels(proposals);

    CUCorrectionProposal proposal = (CUCorrectionProposal) proposals.get(0);
    String preview1 = getPreviewContent(proposal);

    buf = new StringBuffer();
    buf.append("package test1;\n");
    buf.append("import java.io.FileInputStream;\n");
    buf.append("import java.io.FileNotFoundException;\n");
    buf.append("import java.io.IOException;\n");
    buf.append("class MyException extends Exception {\n");
    buf.append("    static final long serialVersionUID = 1L;\n");
    buf.append("}\n");
    buf.append("public class E {\n");
    buf.append("    void bar(int n) throws IllegalArgumentException, MyException {\n");
    buf.append("        if (n == 1)\n");
    buf.append("            throw new IllegalArgumentException();\n");
    buf.append("        else\n");
    buf.append("            throw new MyException();\n");
    buf.append("    }\n");
    buf.append(
        "    void foo(String name, boolean b) throws FileNotFoundException, IOException {\n");
    buf.append("        try (FileInputStream fis = new FileInputStream(name)) {\n");
    buf.append("            bar(1);\n");
    buf.append("        }\n");
    buf.append("    }\n");
    buf.append("}\n");
    String expected1 = buf.toString();

    proposal = (CUCorrectionProposal) proposals.get(1);
    String preview2 = getPreviewContent(proposal);

    buf = new StringBuffer();
    buf.append("package test1;\n");
    buf.append("import java.io.FileInputStream;\n");
    buf.append("import java.io.FileNotFoundException;\n");
    buf.append("import java.io.IOException;\n");
    buf.append("class MyException extends Exception {\n");
    buf.append("    static final long serialVersionUID = 1L;\n");
    buf.append("}\n");
    buf.append("public class E {\n");
    buf.append("    void bar(int n) throws IllegalArgumentException, MyException {\n");
    buf.append("        if (n == 1)\n");
    buf.append("            throw new IllegalArgumentException();\n");
    buf.append("        else\n");
    buf.append("            throw new MyException();\n");
    buf.append("    }\n");
    buf.append("    void foo(String name, boolean b) {\n");
    buf.append("        try (FileInputStream fis = new FileInputStream(name)) {\n");
    buf.append("            bar(1);\n");
    buf.append("        } catch (FileNotFoundException e) {\n");
    buf.append("        } catch (IOException e) {\n");
    buf.append("        }\n");
    buf.append("    }\n");
    buf.append("}\n");
    String expected2 = buf.toString();

    proposal = (CUCorrectionProposal) proposals.get(2);
    String preview3 = getPreviewContent(proposal);

    buf = new StringBuffer();
    buf.append("package test1;\n");
    buf.append("import java.io.FileInputStream;\n");
    buf.append("import java.io.FileNotFoundException;\n");
    buf.append("import java.io.IOException;\n");
    buf.append("class MyException extends Exception {\n");
    buf.append("    static final long serialVersionUID = 1L;\n");
    buf.append("}\n");
    buf.append("public class E {\n");
    buf.append("    void bar(int n) throws IllegalArgumentException, MyException {\n");
    buf.append("        if (n == 1)\n");
    buf.append("            throw new IllegalArgumentException();\n");
    buf.append("        else\n");
    buf.append("            throw new MyException();\n");
    buf.append("    }\n");
    buf.append("    void foo(String name, boolean b) {\n");
    buf.append("        try (FileInputStream fis = new FileInputStream(name)) {\n");
    buf.append("            bar(1);\n");
    buf.append("        } catch (FileNotFoundException | IOException e) {\n");
    buf.append("        }\n");
    buf.append("    }\n");
    buf.append("}\n");
    String expected3 = buf.toString();

    assertEqualStringsIgnoreOrder(
        new String[] {preview1, preview2, preview3},
        new String[] {expected1, expected2, expected3});
  }

  @Test
  public void testUncaughtExceptionTryWithResources3() throws Exception {

    IPackageFragment pack1 = fSourceFolder.createPackageFragment("test1", false, null);
    StringBuffer buf = new StringBuffer();
    buf.append("package test1;\n");
    buf.append("import java.io.FileInputStream;\n");
    buf.append("class MyException extends Exception {\n");
    buf.append("    static final long serialVersionUID = 1L;\n");
    buf.append("}\n");
    buf.append("public class E {\n");
    buf.append("    void bar(int n) throws IllegalArgumentException, MyException {\n");
    buf.append("        if (n == 1)\n");
    buf.append("            throw new IllegalArgumentException();\n");
    buf.append("        else\n");
    buf.append("            throw new MyException();\n");
    buf.append("    }\n");
    buf.append("    void foo(String name, boolean b) {\n");
    buf.append("        try (FileInputStream fis = new FileInputStream(name)) {\n");
    buf.append("            bar(1);\n");
    buf.append("        }\n");
    buf.append("    }\n");
    buf.append("}\n");

    ICompilationUnit cu = pack1.createCompilationUnit("E.java", buf.toString(), false, null);

    CompilationUnit astRoot = getASTRoot(cu);
    ArrayList proposals = collectCorrections(cu, astRoot, 3, 2); // quick fix on 3rd problem
    assertNumberOfProposals(proposals, 5);
    assertCorrectLabels(proposals);

    CUCorrectionProposal proposal = (CUCorrectionProposal) proposals.get(0);
    String preview1 = getPreviewContent(proposal);

    buf = new StringBuffer();
    buf.append("package test1;\n");
    buf.append("import java.io.FileInputStream;\n");
    buf.append("class MyException extends Exception {\n");
    buf.append("    static final long serialVersionUID = 1L;\n");
    buf.append("}\n");
    buf.append("public class E {\n");
    buf.append("    void bar(int n) throws IllegalArgumentException, MyException {\n");
    buf.append("        if (n == 1)\n");
    buf.append("            throw new IllegalArgumentException();\n");
    buf.append("        else\n");
    buf.append("            throw new MyException();\n");
    buf.append("    }\n");
    buf.append(
        "    void foo(String name, boolean b) throws IllegalArgumentException, MyException {\n");
    buf.append("        try (FileInputStream fis = new FileInputStream(name)) {\n");
    buf.append("            bar(1);\n");
    buf.append("        }\n");
    buf.append("    }\n");
    buf.append("}\n");
    String expected1 = buf.toString();

    proposal = (CUCorrectionProposal) proposals.get(1);
    String preview2 = getPreviewContent(proposal);

    buf = new StringBuffer();
    buf.append("package test1;\n");
    buf.append("import java.io.FileInputStream;\n");
    buf.append("class MyException extends Exception {\n");
    buf.append("    static final long serialVersionUID = 1L;\n");
    buf.append("}\n");
    buf.append("public class E {\n");
    buf.append("    void bar(int n) throws IllegalArgumentException, MyException {\n");
    buf.append("        if (n == 1)\n");
    buf.append("            throw new IllegalArgumentException();\n");
    buf.append("        else\n");
    buf.append("            throw new MyException();\n");
    buf.append("    }\n");
    buf.append("    void foo(String name, boolean b) {\n");
    buf.append("        try (FileInputStream fis = new FileInputStream(name)) {\n");
    buf.append("            bar(1);\n");
    buf.append("        } catch (IllegalArgumentException e) {\n");
    buf.append("        } catch (MyException e) {\n");
    buf.append("        }\n");
    buf.append("    }\n");
    buf.append("}\n");
    String expected2 = buf.toString();

    proposal = (CUCorrectionProposal) proposals.get(2);
    String preview3 = getPreviewContent(proposal);

    buf = new StringBuffer();
    buf.append("package test1;\n");
    buf.append("import java.io.FileInputStream;\n");
    buf.append("class MyException extends Exception {\n");
    buf.append("    static final long serialVersionUID = 1L;\n");
    buf.append("}\n");
    buf.append("public class E {\n");
    buf.append("    void bar(int n) throws IllegalArgumentException, MyException {\n");
    buf.append("        if (n == 1)\n");
    buf.append("            throw new IllegalArgumentException();\n");
    buf.append("        else\n");
    buf.append("            throw new MyException();\n");
    buf.append("    }\n");
    buf.append("    void foo(String name, boolean b) {\n");
    buf.append("        try (FileInputStream fis = new FileInputStream(name)) {\n");
    buf.append("            bar(1);\n");
    buf.append("        } catch (IllegalArgumentException | MyException e) {\n");
    buf.append("        }\n");
    buf.append("    }\n");
    buf.append("}\n");
    String expected3 = buf.toString();

    proposal = (CUCorrectionProposal) proposals.get(3);
    String preview4 = getPreviewContent(proposal);

    buf = new StringBuffer();
    buf.append("package test1;\n");
    buf.append("import java.io.FileInputStream;\n");
    buf.append("class MyException extends Exception {\n");
    buf.append("    static final long serialVersionUID = 1L;\n");
    buf.append("}\n");
    buf.append("public class E {\n");
    buf.append("    void bar(int n) throws IllegalArgumentException, MyException {\n");
    buf.append("        if (n == 1)\n");
    buf.append("            throw new IllegalArgumentException();\n");
    buf.append("        else\n");
    buf.append("            throw new MyException();\n");
    buf.append("    }\n");
    buf.append("    void foo(String name, boolean b) {\n");
    buf.append("        try (FileInputStream fis = new FileInputStream(name)) {\n");
    buf.append("            try {\n");
    buf.append("                bar(1);\n");
    buf.append("            } catch (IllegalArgumentException e) {\n");
    buf.append("            } catch (MyException e) {\n");
    buf.append("            }\n");
    buf.append("        }\n");
    buf.append("    }\n");
    buf.append("}\n");
    String expected4 = buf.toString();

    proposal = (CUCorrectionProposal) proposals.get(4);
    String preview5 = getPreviewContent(proposal);

    buf = new StringBuffer();
    buf.append("package test1;\n");
    buf.append("import java.io.FileInputStream;\n");
    buf.append("class MyException extends Exception {\n");
    buf.append("    static final long serialVersionUID = 1L;\n");
    buf.append("}\n");
    buf.append("public class E {\n");
    buf.append("    void bar(int n) throws IllegalArgumentException, MyException {\n");
    buf.append("        if (n == 1)\n");
    buf.append("            throw new IllegalArgumentException();\n");
    buf.append("        else\n");
    buf.append("            throw new MyException();\n");
    buf.append("    }\n");
    buf.append("    void foo(String name, boolean b) {\n");
    buf.append("        try (FileInputStream fis = new FileInputStream(name)) {\n");
    buf.append("            try {\n");
    buf.append("                bar(1);\n");
    buf.append("            } catch (IllegalArgumentException | MyException e) {\n");
    buf.append("            }\n");
    buf.append("        }\n");
    buf.append("    }\n");
    buf.append("}\n");
    String expected5 = buf.toString();

    assertEqualStringsIgnoreOrder(
        new String[] {preview1, preview2, preview3, preview4, preview5},
        new String[] {expected1, expected2, expected3, expected4, expected5});
  }

  @Test
  public void testUncaughtExceptionTryWithResources4() throws Exception {
    // https://bugs.eclipse.org/bugs/show_bug.cgi?id=351464
    IPackageFragment pack1 = fSourceFolder.createPackageFragment("test1", false, null);
    StringBuffer buf = new StringBuffer();
    buf.append("package test1;\n");
    buf.append("import java.io.FileInputStream;\n");
    buf.append("import java.io.IOException;\n");
    buf.append("class MyException extends Exception {\n");
    buf.append("    static final long serialVersionUID = 1L;\n");
    buf.append("}\n");
    buf.append("public class E {\n");
    buf.append("    void bar() throws MyException {\n");
    buf.append("        throw new MyException();\n");
    buf.append("    }\n");
    buf.append("    void foo(String name, boolean b) throws IOException {\n");
    buf.append("        try (FileInputStream fis = new FileInputStream(name)) {\n");
    buf.append("            bar();\n");
    buf.append("        }\n");
    buf.append("    }\n");
    buf.append("}\n");

    ICompilationUnit cu = pack1.createCompilationUnit("E.java", buf.toString(), false, null);

    CompilationUnit astRoot = getASTRoot(cu);
    ArrayList proposals = collectCorrections(cu, astRoot);
    assertNumberOfProposals(proposals, 3);
    assertCorrectLabels(proposals);

    CUCorrectionProposal proposal = (CUCorrectionProposal) proposals.get(0);
    String preview1 = getPreviewContent(proposal);

    buf = new StringBuffer();
    buf.append("package test1;\n");
    buf.append("import java.io.FileInputStream;\n");
    buf.append("import java.io.IOException;\n");
    buf.append("class MyException extends Exception {\n");
    buf.append("    static final long serialVersionUID = 1L;\n");
    buf.append("}\n");
    buf.append("public class E {\n");
    buf.append("    void bar() throws MyException {\n");
    buf.append("        throw new MyException();\n");
    buf.append("    }\n");
    buf.append("    void foo(String name, boolean b) throws IOException, MyException {\n");
    buf.append("        try (FileInputStream fis = new FileInputStream(name)) {\n");
    buf.append("            bar();\n");
    buf.append("        }\n");
    buf.append("    }\n");
    buf.append("}\n");
    String expected1 = buf.toString();

    proposal = (CUCorrectionProposal) proposals.get(1);
    String preview2 = getPreviewContent(proposal);

    buf = new StringBuffer();
    buf.append("package test1;\n");
    buf.append("import java.io.FileInputStream;\n");
    buf.append("import java.io.IOException;\n");
    buf.append("class MyException extends Exception {\n");
    buf.append("    static final long serialVersionUID = 1L;\n");
    buf.append("}\n");
    buf.append("public class E {\n");
    buf.append("    void bar() throws MyException {\n");
    buf.append("        throw new MyException();\n");
    buf.append("    }\n");
    buf.append("    void foo(String name, boolean b) throws IOException {\n");
    buf.append("        try (FileInputStream fis = new FileInputStream(name)) {\n");
    buf.append("            bar();\n");
    buf.append("        } catch (MyException e) {\n");
    buf.append("        }\n");
    buf.append("    }\n");
    buf.append("}\n");
    String expected2 = buf.toString();

    proposal = (CUCorrectionProposal) proposals.get(2);
    String preview3 = getPreviewContent(proposal);

    buf = new StringBuffer();
    buf.append("package test1;\n");
    buf.append("import java.io.FileInputStream;\n");
    buf.append("import java.io.IOException;\n");
    buf.append("class MyException extends Exception {\n");
    buf.append("    static final long serialVersionUID = 1L;\n");
    buf.append("}\n");
    buf.append("public class E {\n");
    buf.append("    void bar() throws MyException {\n");
    buf.append("        throw new MyException();\n");
    buf.append("    }\n");
    buf.append("    void foo(String name, boolean b) throws IOException {\n");
    buf.append("        try (FileInputStream fis = new FileInputStream(name)) {\n");
    buf.append("            try {\n");
    buf.append("                bar();\n");
    buf.append("            } catch (MyException e) {\n");
    buf.append("            }\n");
    buf.append("        }\n");
    buf.append("    }\n");
    buf.append("}\n");
    String expected3 = buf.toString();

    assertEqualStringsIgnoreOrder(
        new String[] {preview1, preview2, preview3},
        new String[] {expected1, expected2, expected3});
  }

  @Test
  public void testUncaughtExceptionTryWithResources5() throws Exception {
    // https://bugs.eclipse.org/bugs/show_bug.cgi?id=139231
    IPackageFragment pack1 = fSourceFolder.createPackageFragment("test1", false, null);
    StringBuffer buf = new StringBuffer();
    buf.append("package test1;\n");
    buf.append("import java.io.FileInputStream;\n");
    buf.append("public class E {\n");
    buf.append("    void foo(String name, boolean b) {\n");
    buf.append("        String e;\n");
    buf.append("        try (FileInputStream fis = new FileInputStream(name)) {\n");
    buf.append("        }\n");
    buf.append("    }\n");
    buf.append("}\n");

    ICompilationUnit cu = pack1.createCompilationUnit("E.java", buf.toString(), false, null);

    CompilationUnit astRoot = getASTRoot(cu);
    ArrayList proposals = collectCorrections(cu, astRoot, 2, 0); // quick fix on 1st problem
    assertNumberOfProposals(proposals, 3);
    assertCorrectLabels(proposals);

    CUCorrectionProposal proposal = (CUCorrectionProposal) proposals.get(0);
    String preview1 = getPreviewContent(proposal);

    buf = new StringBuffer();
    buf.append("package test1;\n");
    buf.append("import java.io.FileInputStream;\n");
    buf.append("import java.io.FileNotFoundException;\n");
    buf.append("import java.io.IOException;\n");
    buf.append("public class E {\n");
    buf.append(
        "    void foo(String name, boolean b) throws FileNotFoundException, IOException {\n");
    buf.append("        String e;\n");
    buf.append("        try (FileInputStream fis = new FileInputStream(name)) {\n");
    buf.append("        }\n");
    buf.append("    }\n");
    buf.append("}\n");
    String expected1 = buf.toString();

    proposal = (CUCorrectionProposal) proposals.get(1);
    String preview2 = getPreviewContent(proposal);

    buf = new StringBuffer();
    buf.append("package test1;\n");
    buf.append("import java.io.FileInputStream;\n");
    buf.append("import java.io.FileNotFoundException;\n");
    buf.append("import java.io.IOException;\n");
    buf.append("public class E {\n");
    buf.append("    void foo(String name, boolean b) {\n");
    buf.append("        String e;\n");
    buf.append("        try (FileInputStream fis = new FileInputStream(name)) {\n");
    buf.append("        } catch (FileNotFoundException e1) {\n");
    buf.append("        } catch (IOException e1) {\n");
    buf.append("        }\n");
    buf.append("    }\n");
    buf.append("}\n");
    String expected2 = buf.toString();

    proposal = (CUCorrectionProposal) proposals.get(2);
    String preview3 = getPreviewContent(proposal);

    buf = new StringBuffer();
    buf.append("package test1;\n");
    buf.append("import java.io.FileInputStream;\n");
    buf.append("import java.io.FileNotFoundException;\n");
    buf.append("import java.io.IOException;\n");
    buf.append("public class E {\n");
    buf.append("    void foo(String name, boolean b) {\n");
    buf.append("        String e;\n");
    buf.append("        try (FileInputStream fis = new FileInputStream(name)) {\n");
    buf.append("        } catch (FileNotFoundException | IOException e1) {\n");
    buf.append("        }\n");
    buf.append("    }\n");
    buf.append("}\n");
    String expected3 = buf.toString();

    assertEqualStringsIgnoreOrder(
        new String[] {preview1, preview2, preview3},
        new String[] {expected1, expected2, expected3});
  }

  @Test
  public void testUnneededCaughtException1() throws Exception {

    IPackageFragment pack1 = fSourceFolder.createPackageFragment("test1", false, null);
    StringBuffer buf = new StringBuffer();
    buf.append("package test1;\n");
    buf.append("import java.io.FileNotFoundException;\n");
    buf.append("import java.io.IOException;\n");
    buf.append("public class E {\n");
    buf.append("    public void foo() {\n");
    buf.append("        try {\n");
    buf.append("            throw new FileNotFoundException();\n");
    buf.append("        } catch (FileNotFoundException | IOException e) {\n");
    buf.append("        }\n");
    buf.append("    }\n");
    buf.append("}\n");
    ICompilationUnit cu = pack1.createCompilationUnit("E.java", buf.toString(), false, null);

    CompilationUnit astRoot = getASTRoot(cu);
    ArrayList proposals = collectCorrections(cu, astRoot);
    assertNumberOfProposals(proposals, 2);
    assertCorrectLabels(proposals);

    CUCorrectionProposal proposal = (CUCorrectionProposal) proposals.get(0);
    String preview1 = getPreviewContent(proposal);

    buf = new StringBuffer();
    buf.append("package test1;\n");
    buf.append("import java.io.FileNotFoundException;\n");
    buf.append("import java.io.IOException;\n");
    buf.append("public class E {\n");
    buf.append("    public void foo() {\n");
    buf.append("        try {\n");
    buf.append("            throw new FileNotFoundException();\n");
    buf.append("        } catch (IOException e) {\n");
    buf.append("        }\n");
    buf.append("    }\n");
    buf.append("}\n");
    String expected1 = buf.toString();

    proposal = (CUCorrectionProposal) proposals.get(1);
    String preview2 = getPreviewContent(proposal);

    buf = new StringBuffer();
    buf.append("package test1;\n");
    buf.append("import java.io.FileNotFoundException;\n");
    buf.append("import java.io.IOException;\n");
    buf.append("public class E {\n");
    buf.append("    public void foo() throws FileNotFoundException {\n");
    buf.append("        try {\n");
    buf.append("            throw new FileNotFoundException();\n");
    buf.append("        } catch (IOException e) {\n");
    buf.append("        }\n");
    buf.append("    }\n");
    buf.append("}\n");
    String expected2 = buf.toString();

    assertEqualStringsIgnoreOrder(
        new String[] {preview1, preview2}, new String[] {expected1, expected2});
  }

  @Test
  public void testUnneededCaughtException2() throws Exception {

    IPackageFragment pack1 = fSourceFolder.createPackageFragment("test1", false, null);
    StringBuffer buf = new StringBuffer();
    buf.append("package test1;\n");
    buf.append("import java.io.FileNotFoundException;\n");
    buf.append("import java.io.IOException;\n");
    buf.append("public class E {\n");
    buf.append("    public void foo() {\n");
    buf.append("        try {\n");
    buf.append("            throw new FileNotFoundException();\n");
    buf.append("        } catch (java.io.FileNotFoundException | java.io.IOException e) {\n");
    buf.append("        }\n");
    buf.append("    }\n");
    buf.append("}\n");
    ICompilationUnit cu = pack1.createCompilationUnit("E.java", buf.toString(), false, null);

    CompilationUnit astRoot = getASTRoot(cu);
    ArrayList proposals = collectCorrections(cu, astRoot);
    assertNumberOfProposals(proposals, 2);
    assertCorrectLabels(proposals);

    CUCorrectionProposal proposal = (CUCorrectionProposal) proposals.get(0);
    String preview1 = getPreviewContent(proposal);

    buf = new StringBuffer();
    buf.append("package test1;\n");
    buf.append("import java.io.FileNotFoundException;\n");
    buf.append("import java.io.IOException;\n");
    buf.append("public class E {\n");
    buf.append("    public void foo() {\n");
    buf.append("        try {\n");
    buf.append("            throw new FileNotFoundException();\n");
    buf.append("        } catch (java.io.IOException e) {\n");
    buf.append("        }\n");
    buf.append("    }\n");
    buf.append("}\n");
    String expected1 = buf.toString();

    proposal = (CUCorrectionProposal) proposals.get(1);
    String preview2 = getPreviewContent(proposal);

    buf = new StringBuffer();
    buf.append("package test1;\n");
    buf.append("import java.io.FileNotFoundException;\n");
    buf.append("import java.io.IOException;\n");
    buf.append("public class E {\n");
    buf.append("    public void foo() throws java.io.FileNotFoundException {\n");
    buf.append("        try {\n");
    buf.append("            throw new FileNotFoundException();\n");
    buf.append("        } catch (java.io.IOException e) {\n");
    buf.append("        }\n");
    buf.append("    }\n");
    buf.append("}\n");
    String expected2 = buf.toString();

    assertEqualStringsIgnoreOrder(
        new String[] {preview1, preview2}, new String[] {expected1, expected2});
  }

  @Test
  public void testUnneededCatchBlockTryWithResources() throws Exception {

    IPackageFragment pack1 = fSourceFolder.createPackageFragment("test1", false, null);
    StringBuffer buf = new StringBuffer();
    buf.append("package test1;\n");
    buf.append("import java.io.FileReader;\n");
    buf.append("class MyException extends Exception {\n");
    buf.append("    static final long serialVersionUID = 1L;\n");
    buf.append("}\n");
    buf.append("public class E {\n");
    buf.append("    void foo() throws Exception {\n");
    buf.append("        try (FileReader reader1 = new FileReader(\"file\")) {\n");
    buf.append("            int ch;\n");
    buf.append("            while ((ch = reader1.read()) != -1) {\n");
    buf.append("                System.out.println(ch);\n");
    buf.append("            }\n");
    buf.append("        } catch (MyException e) {\n");
    buf.append("        }\n");
    buf.append("    }\n");
    buf.append("}\n");
    ICompilationUnit cu = pack1.createCompilationUnit("E.java", buf.toString(), false, null);

    CompilationUnit astRoot = getASTRoot(cu);
    ArrayList proposals = collectCorrections(cu, astRoot);
    assertNumberOfProposals(proposals, 2);
    assertCorrectLabels(proposals);

    CUCorrectionProposal proposal = (CUCorrectionProposal) proposals.get(0);
    String preview1 = getPreviewContent(proposal);

    buf = new StringBuffer();
    buf.append("package test1;\n");
    buf.append("import java.io.FileReader;\n");
    buf.append("class MyException extends Exception {\n");
    buf.append("    static final long serialVersionUID = 1L;\n");
    buf.append("}\n");
    buf.append("public class E {\n");
    buf.append("    void foo() throws Exception {\n");
    buf.append("        try (FileReader reader1 = new FileReader(\"file\")) {\n");
    buf.append("            int ch;\n");
    buf.append("            while ((ch = reader1.read()) != -1) {\n");
    buf.append("                System.out.println(ch);\n");
    buf.append("            }\n");
    buf.append("        }\n");
    buf.append("    }\n");
    buf.append("}\n");
    String expected1 = buf.toString();

    proposal = (CUCorrectionProposal) proposals.get(1);
    String preview2 = getPreviewContent(proposal);

    buf = new StringBuffer();
    buf.append("package test1;\n");
    buf.append("import java.io.FileReader;\n");
    buf.append("class MyException extends Exception {\n");
    buf.append("    static final long serialVersionUID = 1L;\n");
    buf.append("}\n");
    buf.append("public class E {\n");
    buf.append("    void foo() throws Exception {\n");
    buf.append("        try (FileReader reader1 = new FileReader(\"file\")) {\n");
    buf.append("            int ch;\n");
    buf.append("            while ((ch = reader1.read()) != -1) {\n");
    buf.append("                System.out.println(ch);\n");
    buf.append("            }\n");
    buf.append("        }\n");
    buf.append("    }\n");
    buf.append("}\n");
    String expected2 = buf.toString();

    assertEqualStringsIgnoreOrder(
        new String[] {preview1, preview2}, new String[] {expected1, expected2});
  }

  @Test
  public void testRemoveRedundantTypeArguments1() throws Exception {

    IPackageFragment pack1 = fSourceFolder.createPackageFragment("test1", false, null);
    StringBuffer buf = new StringBuffer();
    buf.append("package test1;\n");
    buf.append("import java.util.ArrayList;\n");
    buf.append("import java.util.List;\n");
    buf.append("public class E {\n");
    buf.append("    void foo() {\n");
    buf.append("        List<String> a = new ArrayList<java.lang.String>();\n");
    buf.append("    }\n");
    buf.append("}\n");
    ICompilationUnit cu = pack1.createCompilationUnit("E.java", buf.toString(), false, null);

    CompilationUnit astRoot = getASTRoot(cu);
    ArrayList proposals = collectCorrections(cu, astRoot);
    assertNumberOfProposals(proposals, 3);
    assertCorrectLabels(proposals);

    buf = new StringBuffer();
    buf.append("package test1;\n");
    buf.append("import java.util.ArrayList;\n");
    buf.append("import java.util.List;\n");
    buf.append("public class E {\n");
    buf.append("    void foo() {\n");
    buf.append("        List<String> a = new ArrayList<>();\n");
    buf.append("    }\n");
    buf.append("}\n");

    String expected1 = buf.toString();
    assertExpectedExistInProposals(proposals, new String[] {expected1});
  }

  @Test
  public void testRemoveRedundantTypeArguments2() throws Exception {

    IPackageFragment pack1 = fSourceFolder.createPackageFragment("test1", false, null);
    StringBuffer buf = new StringBuffer();
    buf.append("package test1;\n");
    buf.append("import java.util.HashMap;\n");
    buf.append("import java.util.Map;\n");
    buf.append("public class E {\n");
    buf.append("    void foo() {\n");
    buf.append("        Map<String,String> a = new HashMap<String,String>();\n");
    buf.append("    }\n");
    buf.append("}\n");
    ICompilationUnit cu = pack1.createCompilationUnit("E.java", buf.toString(), false, null);

    CompilationUnit astRoot = getASTRoot(cu);
    ArrayList proposals = collectCorrections(cu, astRoot);
    assertNumberOfProposals(proposals, 3);
    assertCorrectLabels(proposals);

    buf = new StringBuffer();
    buf.append("package test1;\n");
    buf.append("import java.util.HashMap;\n");
    buf.append("import java.util.Map;\n");
    buf.append("public class E {\n");
    buf.append("    void foo() {\n");
    buf.append("        Map<String,String> a = new HashMap<>();\n");
    buf.append("    }\n");
    buf.append("}\n");

    String expected1 = buf.toString();
    assertExpectedExistInProposals(proposals, new String[] {expected1});
  }

  @Test
  public void testRemoveRedundantTypeArguments3() throws Exception {

    IPackageFragment pack1 = fSourceFolder.createPackageFragment("test1", false, null);
    StringBuffer buf = new StringBuffer();
    buf.append("package test1;\n");
    buf.append("import java.util.ArrayList;\n");
    buf.append("import java.util.List;\n");
    buf.append("import java.util.Map;\n");
    buf.append("public class E {\n");
    buf.append("    void foo() {\n");
    buf.append("        List<Map<String, String>> a = new ArrayList<Map<String, String>>();;\n");
    buf.append("    }\n");
    buf.append("}\n");
    ICompilationUnit cu = pack1.createCompilationUnit("E.java", buf.toString(), false, null);

    CompilationUnit astRoot = getASTRoot(cu);
    ArrayList proposals = collectCorrections(cu, astRoot);
    assertNumberOfProposals(proposals, 3);
    assertCorrectLabels(proposals);

    buf = new StringBuffer();
    buf.append("package test1;\n");
    buf.append("import java.util.ArrayList;\n");
    buf.append("import java.util.List;\n");
    buf.append("import java.util.Map;\n");
    buf.append("public class E {\n");
    buf.append("    void foo() {\n");
    buf.append("        List<Map<String, String>> a = new ArrayList<>();;\n");
    buf.append("    }\n");
    buf.append("}\n");

    String expected1 = buf.toString();
    assertExpectedExistInProposals(proposals, new String[] {expected1});
  }

  @Test
  public void testRemoveRedundantTypeArguments4() throws Exception {

    IPackageFragment pack1 = fSourceFolder.createPackageFragment("test1", false, null);
    StringBuffer buf = new StringBuffer();
    buf.append("package test1;\n");
    buf.append("import java.util.HashMap;\n");
    buf.append("import java.util.Map;\n");
    buf.append("public class E {\n");
    buf.append("    void foo() {\n");
    buf.append(
        "        Map<Map<String, String>, Map<String, String>> a = new HashMap<Map<String, String>, Map<String, String>>();;\n");
    buf.append("    }\n");
    buf.append("}\n");
    ICompilationUnit cu = pack1.createCompilationUnit("E.java", buf.toString(), false, null);

    CompilationUnit astRoot = getASTRoot(cu);
    ArrayList proposals = collectCorrections(cu, astRoot);
    assertNumberOfProposals(proposals, 3);
    assertCorrectLabels(proposals);

    buf = new StringBuffer();
    buf.append("package test1;\n");
    buf.append("import java.util.HashMap;\n");
    buf.append("import java.util.Map;\n");
    buf.append("public class E {\n");
    buf.append("    void foo() {\n");
    buf.append("        Map<Map<String, String>, Map<String, String>> a = new HashMap<>();;\n");
    buf.append("    }\n");
    buf.append("}\n");

    String expected1 = buf.toString();
    assertExpectedExistInProposals(proposals, new String[] {expected1});
  }
}
